Function report

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:block\partitions\ldm.c Create Date:2022-07-28 17:27:59
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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Name:ldm_parse_dgr3 - Read a raw VBLK Disk Group object into a vblk structure*@buffer: Block of data being worked on*@buflen: Size of the block of data*@vb: In-memory vblk in which to return information

Proto:static int ldm_parse_dgr3(const u8 *buffer, int buflen, struct vblk *vb)

Type:int

Parameter:

TypeParameterName
const u8 *buffer
intbuflen
struct vblk *vb
776  BUG_ON(!buffer || !vb)
778  r_objid = ldm_relative - Calculate the next relative offset*@buffer: Block of data being worked on*@buflen: Size of the block of data*@base: Size of the previous fixed width fields*@offset: Cumulative size of the previous variable-width fields* Because many of the
779  r_name = ldm_relative - Calculate the next relative offset*@buffer: Block of data being worked on*@buflen: Size of the block of data*@base: Size of the previous fixed width fields*@offset: Cumulative size of the previous variable-width fields* Because many of the
780  r_diskid = ldm_relative - Calculate the next relative offset*@buffer: Block of data being worked on*@buflen: Size of the block of data*@base: Size of the previous fixed width fields*@offset: Cumulative size of the previous variable-width fields* Because many of the
782  If buffer[0x12] & VBLK_FLAG_DGR3_IDS Then
783  r_id1 = ldm_relative - Calculate the next relative offset*@buffer: Block of data being worked on*@buflen: Size of the block of data*@base: Size of the previous fixed width fields*@offset: Cumulative size of the previous variable-width fields* Because many of the
784  r_id2 = ldm_relative - Calculate the next relative offset*@buffer: Block of data being worked on*@buflen: Size of the block of data*@base: Size of the previous fixed width fields*@offset: Cumulative size of the previous variable-width fields* Because many of the
785  len = r_id2
786  Else
787  r_id1 = 0
788  r_id2 = 0
789  len = r_diskid
791  If len < 0 Then Return false
794  len += VBLK_SIZE_DGR3
795  If len != get_unaligned_be32(buffer + 0x14) Then Return false
798  dgrp = dgrp
799  ldm_get_vstr - Read a length-prefixed string into a buffer*@block: Pointer to the length marker*@buffer: Location to copy string to*@buflen: Size of the output buffer* Many of the strings in the LDM Database are not NULL terminated. Instead
801  Return true
Caller
NameDescribe
ldm_parse_vblkldm_parse_vblk - Read a raw VBLK object into a vblk structure*@buf: Block of data being worked on*@len: Size of the block of data*@vb: In-memory vblk in which to return information* Read a raw VBLK object into a vblk structure